<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>子窗口</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            padding: 20px;
        }

        .content {
            text-align: center;
            color: white;
        }

        h1 {
            font-size: 32px;
            margin-bottom: 20px;
        }

        p {
            font-size: 16px;
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .info-box {
            background: rgba(255, 255, 255, 0.2);
            padding: 20px;
            border-radius: 10px;
            margin-top: 20px;
            backdrop-filter: blur(10px);
        }
    </style>
</head>
<body>
    <div class="content">
        <h1>🎉 子窗口</h1>
        <div class="info-box">
            <p>这是一个子窗口示例</p>
            <p>可以用于显示额外信息、提示或对话框</p>
            <p style="margin-top: 15px; font-size: 14px; opacity: 0.9;">
                关闭此窗口可以点击窗口右上角的关闭按钮
            </p>
        </div>
    </div>
</body>
</html>

